addrmode3 instruction encodings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55596 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 208 insertions, 42 deletions

diff --git a/lib/Target/ARM/ARMInstrFormats.td b/lib/Target/ARM/ARMInstrFormats.td
index d3b97239fe..9cf574f9d3 100644
--- a/lib/Target/ARM/ARMInstrFormats.td
+++ b/lib/Target/ARM/ARMInstrFormats.td
@@ -155,7 +155,7 @@ class AI2<bits<4> opcod, dag oops, dag iops, Format f, string opc,
 class AI2ldw<bits<4> opcod, dag oops, dag iops, Format f, string opc,
           string asm, list<dag> pattern>
   : AI2<opcod, oops, iops, f, opc, asm, pattern> {
-  let Inst{20}    = 1; // load bit
+  let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
@@ -163,7 +163,7 @@ class AI2ldw<bits<4> opcod, dag oops, dag iops, Format f, string opc,
 class AI2ldb<bits<4> opcod, dag oops, dag iops, Format f, string opc,
           string asm, list<dag> pattern>
   : AI2<opcod, oops, iops, f, opc, asm, pattern> {
-  let Inst{20}    = 1; // load bit
+  let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 1; // P bit
@@ -173,7 +173,7 @@ class AI2ldb<bits<4> opcod, dag oops, dag iops, Format f, string opc,
 class AI2stw<bits<4> opcod, dag oops, dag iops, Format f, string opc,
           string asm, list<dag> pattern>
   : AI2<opcod, oops, iops, f, opc, asm, pattern> {
-  let Inst{20}    = 0; // load bit
+  let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
@@ -181,19 +181,18 @@ class AI2stw<bits<4> opcod, dag oops, dag iops, Format f, string opc,
 class AI2stb<bits<4> opcod, dag oops, dag iops, Format f, string opc,
           string asm, list<dag> pattern>
   : AI2<opcod, oops, iops, f, opc, asm, pattern> {
-  let Inst{20}    = 0; // load bit
+  let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 1; // P bit
 }
 
-// Pre-indexed ops
-// loads
+// Pre-indexed loads
 class AI2ldwpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
       asm, cstr, pattern> {
-  let Inst{20}    = 1; // load bit
+  let Inst{20}    = 1; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
@@ -202,18 +201,18 @@ class AI2ldbpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
       asm, cstr, pattern> {
-  let Inst{20}    = 1; // load bit
+  let Inst{20}    = 1; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 1; // P bit
 }
 
-// stores
+// Pre-indexed stores
 class AI2stwpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
       asm, cstr, pattern> {
-  let Inst{20}    = 0; // load bit
+  let Inst{20}    = 0; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
@@ -222,19 +221,18 @@ class AI2stbpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
       asm, cstr, pattern> {
-  let Inst{20}    = 0; // load bit
+  let Inst{20}    = 0; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 1; // P bit
 }
 
-// Post-indexed ops
-// loads
+// Post-indexed loads
 class AI2ldwpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
       asm, cstr,pattern> {
-  let Inst{20}    = 1; // load bit
+  let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 0; // P bit
@@ -243,18 +241,18 @@ class AI2ldbpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
       asm, cstr,pattern> {
-  let Inst{20}    = 1; // load bit
+  let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 0; // P bit
 }
 
-// stores
+// Post-indexed stores
 class AI2stwpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
       asm, cstr,pattern> {
-  let Inst{20}    = 0; // load bit
+  let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 0; // P bit
@@ -263,7 +261,7 @@ class AI2stbpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
       asm, cstr,pattern> {
-  let Inst{20}    = 0; // load bit
+  let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 0; // P bit
@@ -275,25 +273,193 @@ class AI3<bits<4> opcod, dag oops, dag iops, Format f, string opc,
   : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
       asm, "", pattern>;
 
-// addrmode4 instructions
-class AI4<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+// loads
+class AI3ldh<bits<4> opcod, dag oops, dag iops, Format f, string opc,
           string asm, list<dag> pattern>
-  : I<opcod, oops, iops, AddrMode4, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern>;
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
+      asm, "", pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 0; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 0; // W bit
+  let Inst{24}    = 1; // P bit
+}
+class AI3ldsh<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+          string asm, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
+      asm, "", pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 0; // W bit
+  let Inst{24}    = 1; // P bit
+}
+class AI3ldsb<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+          string asm, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
+      asm, "", pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 0; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 0; // W bit
+  let Inst{24}    = 1; // P bit
+}
+class AI3ldd<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+          string asm, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
+      asm, "", pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 0; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 0; // L bit
+  let Inst{21}    = 0; // W bit
+  let Inst{24}    = 1; // P bit
+}
+
+// stores
+class AI3sth<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+          string asm, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
+      asm, "", pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 0; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 0; // L bit
+  let Inst{21}    = 0; // W bit
+  let Inst{24}    = 1; // P bit
+}
+class AI3std<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+          string asm, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
+      asm, "", pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 0; // L bit
+  let Inst{21}    = 0; // W bit
+  let Inst{24}    = 1; // P bit
+}
 
+// Pre-indexed loads
+class AI3ldhpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+            string asm, string cstr, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
+      asm, cstr, pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 0; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 1; // P bit
+}
+class AI3ldshpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+            string asm, string cstr, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
+      asm, cstr, pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 1; // P bit
+}
+class AI3ldsbpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+            string asm, string cstr, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
+      asm, cstr, pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 0; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 1; // P bit
+}
 
-// Pre-indexed ops
-class AI3pr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+// Pre-indexed stores
+class AI3sthpr<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern>;
+      asm, cstr, pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 0; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 0; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 1; // P bit
+}
 
+// Post-indexed loads
+class AI3ldhpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+            string asm, string cstr, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
+      asm, cstr,pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 0; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 0; // P bit
+}
+class AI3ldshpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+            string asm, string cstr, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
+      asm, cstr,pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 0; // P bit
+}
+class AI3ldsbpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+            string asm, string cstr, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
+      asm, cstr,pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 0; // H bit
+  let Inst{6}     = 1; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 1; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 0; // P bit
+}
 
-// Post-indexed ops
-class AI3po<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+// Post-indexed stores
+class AI3sthpo<bits<4> opcod, dag oops, dag iops, Format f, string opc,
             string asm, string cstr, list<dag> pattern>
   : I<opcod, oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern>;
+      asm, cstr,pattern> {
+  let Inst{4}     = 1;
+  let Inst{5}     = 1; // H bit
+  let Inst{6}     = 0; // S bit
+  let Inst{7}     = 1;
+  let Inst{20}    = 0; // L bit
+  let Inst{21}    = 1; // W bit
+  let Inst{24}    = 0; // P bit
+}
+
+
+// addrmode4 instructions
+class AI4<bits<4> opcod, dag oops, dag iops, Format f, string opc,
+          string asm, list<dag> pattern>
+  : I<opcod, oops, iops, AddrMode4, Size4Bytes, IndexModeNone, f, opc,
+      asm, "", pattern>;
+
 
 
 // Special cases.
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index 84e9046079..37a35ad7b4 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -597,7 +597,7 @@ def LDRcp : AI2ldw<0x0, (outs GPR:$dst), (ins addrmode2:$addr), LdFrm,
                  "ldr", " $dst, $addr", []>;
 
 // Loads with zero extension
-def LDRH  : AI3<0xB, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
+def LDRH  : AI3ldh<0xB, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
                  "ldr", "h $dst, $addr",
                 [(set GPR:$dst, (zextloadi16 addrmode3:$addr))]>;
 
@@ -606,17 +606,17 @@ def LDRB  : AI2ldb<0x1, (outs GPR:$dst), (ins addrmode2:$addr), LdFrm,
                 [(set GPR:$dst, (zextloadi8 addrmode2:$addr))]>;
 
 // Loads with sign extension
-def LDRSH : AI3<0xE, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
+def LDRSH : AI3ldsh<0xE, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
                  "ldr", "sh $dst, $addr",
                 [(set GPR:$dst, (sextloadi16 addrmode3:$addr))]>;
 
-def LDRSB : AI3<0xD, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
+def LDRSB : AI3ldsb<0xD, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
                  "ldr", "sb $dst, $addr",
                 [(set GPR:$dst, (sextloadi8 addrmode3:$addr))]>;
 
 let mayLoad = 1 in {
 // Load doubleword
-def LDRD  : AI3<0xD, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
+def LDRD  : AI3ldd<0xD, (outs GPR:$dst), (ins addrmode3:$addr), LdFrm,
                  "ldr", "d $dst, $addr",
                 []>, Requires<[IsARM, HasV5T]>;
 
@@ -629,11 +629,11 @@ def LDR_POST : AI2ldwpo<0x0, (outs GPR:$dst, GPR:$base_wb),
                      (ins GPR:$base, am2offset:$offset), LdFrm,
                      "ldr", " $dst, [$base], $offset", "$base = $base_wb", []>;
 
-def LDRH_PRE  : AI3pr<0xB, (outs GPR:$dst, GPR:$base_wb),
+def LDRH_PRE  : AI3ldhpr<0xB, (outs GPR:$dst, GPR:$base_wb),
                      (ins addrmode3:$addr), LdFrm,
                      "ldr", "h $dst, $addr!", "$addr.base = $base_wb", []>;
 
-def LDRH_POST : AI3po<0xB, (outs GPR:$dst, GPR:$base_wb),
+def LDRH_POST : AI3ldhpo<0xB, (outs GPR:$dst, GPR:$base_wb),
                      (ins GPR:$base,am3offset:$offset), LdFrm,
                      "ldr", "h $dst, [$base], $offset", "$base = $base_wb", []>;
 
@@ -645,19 +645,19 @@ def LDRB_POST : AI2ldbpo<0x1, (outs GPR:$dst, GPR:$base_wb),
                      (ins GPR:$base,am2offset:$offset), LdFrm,
                      "ldr", "b $dst, [$base], $offset", "$base = $base_wb", []>;
 
-def LDRSH_PRE : AI3pr<0xE, (outs GPR:$dst, GPR:$base_wb),
+def LDRSH_PRE : AI3ldshpr<0xE, (outs GPR:$dst, GPR:$base_wb),
                       (ins addrmode3:$addr), LdFrm,
                       "ldr", "sh $dst, $addr!", "$addr.base = $base_wb", []>;
 
-def LDRSH_POST: AI3po<0xE, (outs GPR:$dst, GPR:$base_wb),
+def LDRSH_POST: AI3ldshpo<0xE, (outs GPR:$dst, GPR:$base_wb),
                       (ins GPR:$base,am3offset:$offset), LdFrm,
                       "ldr", "sh $dst, [$base], $offset", "$base = $base_wb", []>;
 
-def LDRSB_PRE : AI3pr<0xD, (outs GPR:$dst, GPR:$base_wb),
+def LDRSB_PRE : AI3ldsbpr<0xD, (outs GPR:$dst, GPR:$base_wb),
                       (ins addrmode3:$addr), LdFrm,
                       "ldr", "sb $dst, $addr!", "$addr.base = $base_wb", []>;
 
-def LDRSB_POST: AI3po<0xD, (outs GPR:$dst, GPR:$base_wb),
+def LDRSB_POST: AI3ldsbpo<0xD, (outs GPR:$dst, GPR:$base_wb),
                       (ins GPR:$base,am3offset:$offset), LdFrm,
                       "ldr", "sb $dst, [$base], $offset", "$base = $base_wb", []>;
 }
@@ -668,7 +668,7 @@ def STR  : AI2stw<0x0, (outs), (ins GPR:$src, addrmode2:$addr), StFrm,
                [(store GPR:$src, addrmode2:$addr)]>;
 
 // Stores with truncate
-def STRH : AI3<0xB, (outs), (ins GPR:$src, addrmode3:$addr), StFrm,
+def STRH : AI3sth<0xB, (outs), (ins GPR:$src, addrmode3:$addr), StFrm,
                "str", "h $src, $addr",
                [(truncstorei16 GPR:$src, addrmode3:$addr)]>;
 
@@ -678,7 +678,7 @@ def STRB : AI2stb<0x1, (outs), (ins GPR:$src, addrmode2:$addr), StFrm,
 
 // Store doubleword
 let mayStore = 1 in
-def STRD : AI3<0xF, (outs), (ins GPR:$src, addrmode3:$addr), StFrm,
+def STRD : AI3std<0xF, (outs), (ins GPR:$src, addrmode3:$addr), StFrm,
                "str", "d $src, $addr",
                []>, Requires<[IsARM, HasV5T]>;
 
@@ -695,13 +695,13 @@ def STR_POST : AI2stwpo<0x0, (outs GPR:$base_wb),
                     [(set GPR:$base_wb,
                       (post_store GPR:$src, GPR:$base, am2offset:$offset))]>;
 
-def STRH_PRE : AI3pr<0xB, (outs GPR:$base_wb),
+def STRH_PRE : AI3sthpr<0xB, (outs GPR:$base_wb),
                      (ins GPR:$src, GPR:$base,am3offset:$offset), StFrm,
                      "str", "h $src, [$base, $offset]!", "$base = $base_wb",
                     [(set GPR:$base_wb,
                       (pre_truncsti16 GPR:$src, GPR:$base,am3offset:$offset))]>;
 
-def STRH_POST: AI3po<0xB, (outs GPR:$base_wb),
+def STRH_POST: AI3sthpo<0xB, (outs GPR:$base_wb),
                      (ins GPR:$src, GPR:$base,am3offset:$offset), StFrm,
                      "str", "h $src, [$base], $offset", "$base = $base_wb",
                     [(set GPR:$base_wb, (post_truncsti16 GPR:$src,